基于雷电预警技术的风电设施防雷技术

风力发电技术迅猛发展,单机发电量不断增加,风电机组高度已增加到上百米,风电机组叶片遭受雷击风险也随之加大.通过雷电损害实例分析风机叶片雷击灾害机理,分析雷电击中风机叶片的形成和发展过程,总结大型风机叶片的特点和风电场的环境因素,以大气电场仪的预警数据为基础,结合前沿的等离子体防雷新技术,针对风力发电机的具体情况进行改进,提出实现风电叶片主动避雷的防雷技术构想,探索一种实现风电机组设备避雷的新思路.

Lightning protection of wind turbine facilities based on lightning warning technology

With the rapid development of wind power technology,the power generation capacity of single machine is increasing and the wind turbine height has been increased to 100 meters.However,the lightning strike risk suffered by the wind turbine also increased.This paper analyzes the mechanisms of lightning strike damage on wind turbine blades,explains the causes and formation of blade damage after lightning strike through examples,and summarizes the characteristics of large turbine blade and environmental factors of wind farm.Some improvements on wind turbine against lightning risk are proposed based on warning data of atmospheric electric field instrument and combined with the latest plasma lightning protection technology.The concept of active lightning protection of wind turbine is proposed,with the purpose to promote development of new lightning protection technology.